In a series of studies by the authors, treatment and positioning of skilled labors in the construction industry, it was pointed out that become ambiguous and obscure by a variety of call you. And, we were presented objectively describe how the relationship between professional Contractors and under the control of the employee using the variables based on the relevant laws and regulations. When diagramming the organization of professional construction company in accordance with the method, we made it clear that the intermediate region exists between outsourcing and employees in relation of professional construction company and technicians. We showed that it is to determine whether employment or not regular, it is necessary to look to "whether or not to join at the expense of labor and management equally to social insurance and labor insurance". Measures of the Ministry of Land, Infrastructure and Transport Social uninsured is positioned as an important issue, officials have been installed propulsion system for carrying out the comprehensive and continuous efforts together. This paper is intended to be discussed summarizes the findings of continuous 2012-2014. It is to organize the subscription status of social insurance professional Contractors, are classified into three types the relationship of professional Contractors and technicians, it was discussed treatment from the point of view of the skilled labors such as subscription status of social insurance.